bt865a Conexant Systems, Inc., bt865a Datasheet - Page 39

• Manufacturer Part Number: bt865a
• Description: Ycrcb To Ntsc/pal Digital Video Encoder
• Manufacturer: Conexant Systems, Inc.

Bt864A/Bt865A Data Sheet
1.11
1.12
1.13
1.14
100138C
02/17/03
Anticopy Process (Bt865A Only)
Internal Color Bars
SCART/PeriTV Support
I
2
C Interface
The anticopy process contained within the Bt865A is implemented according to the
Macrovision version 7 specification developed by Macrovision Corporation in
Sunnyvale, California. All luminance, chrominance, and composite video waveforms
include the Macrovision Anticopy Process. The Bt865A incorporates an anticopy
process technology that is protected by U.S. patents and other intellectual property
rights. The anticopy process is licensed for noncommercial, home use only. Reverse
engineering or disassembly is prohibited.
Conexant cannot ship Bt865A encoders to any customer until that customer has been
licensed by Macrovision. Contact Macrovision Corporation to facilitate this license
agreement. Parties who have obtained a Macrovision license may receive the Bt865A
Macrovision Supplement by contacting Conexant.
The Bt864A/Bt865A can be configured to internally generate colorbar test patterns
(100/7.5/75/7.5 with SETUPDIS = 0 for NTSC/PAL-M,N; 100/0/75/0 with
SETUPDIS = 1 for NTSC–Japan, PAL, BDGHI, Nc).
Internal color bars can be enabled by setting the ECBAR bit to a logical one. In 8-bit
YCrCb mode, setting the Y[7] pin to a logical one also enables color bars, thereby
simplifying testing of various modes. Internal color bars can be enabled in all video
formats.
RGBOUT mode can be enabled by setting the RGBOUT pin to a logical one, or by
setting register bit RGBO. The Bt864A/Bt865A can generate analog RGB video
signals to interface to a SCART/PeriTV connector (see
will be present on the Y/CVBS DAC. RGB outputs are nominally 700 mVpp (black to
white without setup).
A simplified 100 kbps I
be applied and remain stable for I
disable I
2
C communication.
2
C interface is provided for programming the registers. CLK must
Conexant
2
C communication. Activating SLEEP or RESET* will
Table
1-7). Composite video
Circuit Description
1-29